Pneumatic-tire pump



May 31,1927. 1,630,923

E. R. CARSON PNEUMATIG TIRE PUMPA Filed Dev. 17, 1926 Array-ng' lPatterned Mayl, 19217.`

y This invention relates to'an imp'rbvedair pump forlautomobile tires landthe like.- My principalaim is `to generally improve' upon structuresofthis class Aby providing one embodyinganovel 'arrangement ofde# tails, serving to produce an improved struci' ture i characterized by -gdurability, powerliful leverage, speed in operat-ion',` and simplicity and inexpensiveness of manufacture.

of vertical frames between'which is a slide l in which a cross head'is slidably mounted.

A linkage structure isV connected with this vVV crosshead andvpivotally connected wlththe standard and serves fito operate a dual arrangemen'tjofl small pumps associated d1- rectly with the linkage, the cross'fhead being operatedby a reciprocatory operating rod of "somewhat conventional design.v`

The specific detailsl will become from ,the ollowingfdescri'ption and` drawings.Vv

- In the drawings?- Figure lis a side vention. Y A

Fig. Zie a horizontal section on the line .9F-2 of Fig. 1, looking downwardly, and' Fig. 3 is lacross section taken approxiupon the plane ,of the line y3`-3 of Figl.`r Referring now to thedrawings in'detail, itwillbe seen that the reference character 1 designates a base from which the standard 2 rises. This standard is actually made up of a pair oi vertically extending frames 8 having suitably located cross-braces 4. fOf course, therespective'frames may be connected together, so that they may be main# tained in properspaced relationship.

Y Located betweenl these V-f'rafniesgfis a verti'- cally guide track V5 upon which a cross head 6 is slidably mounted. "This head isy operated by a slidably mounted rod/7 having a suitable handle'S at its top. The rod is mounted ofcourse uponthe standard in any appropriate manner. As before stated,7a novel A:apparent view of' a pump ycon-y structed in accordance with the present 1n' linkage structure nected t'ogetheras at 15:1

pivotally f connecte'dto 'acjross piece. v16 :on

vthe,,lovvereend portions "of th'efstan'dards, while the upperends of the upper links"l are Briefly, the invention comprises V a base having a special standard madeup ofa pair pivotally connectedwith. the slide or head l6. 'In addition`,`thecylinders 10 are4 pivot-: l vally mounted as at 17 upon the'lower links, v

while the piston rodsvare pivotally connected tov pins 18 carried'bylthe upp'erl-inks'."

- Discharge` hoses 19 lea'd'from the discharge? l '.endsof the'cylindersand connect througha L" couplinglQO with the'main discharge hoseQl ciprocated in the ordinary manner, the link- `age structure `serves to operatev the?v pumps ,Y due tothe expansion and contraction of the various links. In this way, Athe air is forced i under pressure into the tire. -yThe quantity',

of air is substantially ,doubled andthe lever-V 1,. l age is such as to be multiplied by the presence of theilinkage and to render thefoperation vofthe links comparatively 'eaSy.-`

Itis believed that by considering the de--v tailed description. inf connect-ionwiththe V drawings, a clear understanding ofthein- .ventionas .well as the yoperationof the "adl' I Vvantages will be had. Therefore,a'more lengthy descriptionl is thought unnecessary."-

. VV-hile therpreferred,-embodim-entjof the invention ha-sheen shown and d'e`scribed,vitis y A to be understood that minor changes coming.l

within the liield of invention claimed be resorted to if desired: f f

Having thus 'described my invention, what f' I claim as new ismay '.95 y 'Y 1. In an air pump of the class-described, l

a base,fa' standard rising from saidbas'e, said cally extending spaced Aparallel frames, av

standardfbeing composed of la pair of vertiguide track extendingl vertically between ysaid frames "andjco'nnected thereto, aslide mounted upon said track, an operating'rodl 105 y is employed for imparting movement to the for said slide, a handle carried by said rod,

CHL

miniature pumps 9. There are two of these pumps each including ka cylinder 10 vand. a

piston 11. The linkage structure ifor'operat-` ing the pumps comprises an upper set y12 of links, and a lower set 1 3. Each s et is ac Vtually composed of two pairs oflinks, the

a pump 'including a'cylinder and anpiston' slidable therein, an operating connection for and withrsaid pump. l, Y

udesrbrea, base, a standardfrsing from svd basgla' guide track associated Wthrsad standard, ak-rs11de mounted Qn ssll'gulds track, amv op'eratlng w1md-fforfsarl'd'wshde, .a

' rangement A'(jfpulnps, and operating VILkg'e ,for said pumps, Certain O-' fthe @links gbei'ng' ,pvotally'connectedwth sind standardyand Y 10 Qillers offth .links :being connected with said yert'ical l:gui-ide .locahdffbtween said frames,

handle "OI" said rod, r pumps, each Vjnpclud- Aing aIk cylndermand ytbs piston sldablsn thel Y Y Cylinder, 'operaingfnl'zrge for sad'fpumps, l

sind flnkslge comprsngrfupper anfdlown 

